Gate coil spring 250mm b/j

Gate Coil Spring  

250mm  

Black Japan  

A coil spring is a helical-shaped mechanical device that is close-wound or open-wound.   

Coil springs store mechanical potential energy.   

They can be made of elastic materials or metal such as hardened steel.   

You can find coiled springs in many ordinary items – from farm equipment to toys, trampolines and much more.